JPH0716647B2 - Method and apparatus for manufacturing long resin laminate - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a long resin laminate, and more particularly, a long sheet for printing a three-dimensional resin layer on both sides of a long sheet. And a manufacturing apparatus for the resin laminate.

2. Description of the Related Art A long resin laminate obtained by laminating a three-dimensional resin layer on one surface of a long sheet is known. Such a long resin laminate can be cut into a predetermined size in a production process or at the time of use, and can be used for multiple purposes such as a disposable tablecloth with a handle, a rug for a decorative article, or a packaging material.

As a method for continuously producing such a long resin laminate, a resin fluid extruded from a mesh of a rotary screen is applied onto a belt band made of a glass cloth impregnated with a fluororesin and applied. A method for continuously producing a resin laminate, which comprises a step of drying and solidifying and cooling the resin fluid, printing the resin laminate on the belt belt, and continuously peeling off the printed belt belt portion from the belt belt. But, Japanese Examined Sho 55
No. 7815 or Japanese Patent Publication No. 57-9930.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, the multipurpose sheet cut from such a long resin laminate has a resin layer printed only on one side, and therefore it is necessary to distinguish between the front and back sides, and it is extremely useful in use. It was inconvenient. In addition, when the printed materials are erroneously used upside down or folded back at the time of packaging, the effect exerted on the printed matter, for example, the decorative or advertising effect may be reduced by half. Furthermore, since the base material is exposed on the entire one surface, the effects exhibited by the resin layer, such as the anti-slip effect and the cushioning effect, were not sufficiently obtained.

However, according to the method for producing a resin laminate described in the above publication, the resin layer can be printed on one side of the long sheet, but the resin layer cannot be printed on both sides of the long sheet.

The present invention has been made in view of such a point, in a method and a manufacturing apparatus of a long resin laminate for printing a resin layer on the surface of a long flexible sheet, on both sides of the long sheet An object of the present invention is to provide a manufacturing method and a manufacturing apparatus of a long resin laminate capable of continuously printing a resin layer.

In order to achieve the above-mentioned object, the method for producing a long resin laminate according to the present invention has a predetermined pattern formed on the upper surface of a traveling zone having a smooth upper surface by a first rotary screen circumscribing the upper surface. Forming a resin fluid layer, and heating the resin fluid layer to form a semi-molten first resin layer; and stacking a long flexible sheet on the first resin layer. A step of adhering the lower surface of the sheet to the first resin layer, forming a resin fluid layer having a predetermined pattern on the upper surface of the sheet by a second rotary screen, and heating and drying the resin fluid layer. Forming a substantially solidified second resin layer.

According to the above-described manufacturing method, the semi-molten first resin layer formed on the traveling zone is adhered to the lower surface of the long sheet in a predetermined pattern, and the first sheet of the predetermined pattern is further formed on the long sheet. Two resin layers are formed. Therefore, a resin layer having a predetermined pattern is printed on each of the upper surface and the lower surface of the sheet. Moreover, according to the above manufacturing method, since the resin layers can be formed on both surfaces of the long sheet in a series of steps, it is possible to perform pattern matching of printing on each surface.

Further, in order to achieve the above object, the apparatus for producing a long resin laminate according to the present invention includes a running belt having a smooth upper surface, and a predetermined pattern circumscribing the upper surface of the running belt and the upper surface of the running belt. A first rotary screen forming the first resin fluid layer, a first heating device disposed downstream of the first rotary screen and heating the first resin fluid layer, and passing through the first heating device. A long sheet is placed on the first resin fluid layer, and a sheet diverting means for attaching the first resin layer to the lower surface of the sheet, and a first pattern having a predetermined pattern on the upper surface of the sheet. A second rotary screen for forming the two resin fluid layer and a second heating device for heating the second resin fluid layer are provided.

According to the manufacturing apparatus having the above structure, it is possible to provide a manufacturing apparatus for carrying out the above-described manufacturing method. The first rotary screen forms a first resin fluid layer having a predetermined pattern on the upper surface of the traveling zone, and the first heating device heats the first resin fluid layer to form a semi-molten resin layer, and a sheet. The diverting means, for example, the diverting roller, stacks the long sheet on the resin layer and attaches the resin layer to the lower surface of the long sheet, and the second rotary screen forms the predetermined pattern on the upper surface of the long sheet. A second resin fluid layer is formed, and the second heating device heat-drys the second resin fluid layer. Thus, according to the above manufacturing apparatus, it is possible to form the resin layer having a predetermined pattern on the upper surface and the lower surface of the long sheet. Moreover, according to the above manufacturing apparatus, it is possible to perform pattern matching on each surface of the long sheet by synchronizing the first and second rotary screens.

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic partial cross-sectional view illustrating a long resin laminate manufactured by the manufacturing method of the present invention.

As shown in FIG. 1, the resin laminate 1 comprises a thin cloth-like semitransparent base material 3 and printed materials 10 and 10 printed on the respective surfaces of the base material 3 on the base material 3 as a target. It is manufactured as a laminated sheet having a three-layer structure.

The base material 3 is a nonwoven fabric made of polyester, and is a flexible breathable sheet that can be wound or wound. Further, the printed matter 10 is composed of a plurality of resin layers of soft vinyl chloride resin arranged at intervals from each other, and is formed in a dot shape or a linear shape when seen in a plan view. The base material 3 of the resin laminate 1 has an exposed portion 5 on which the resin layers 11 and 12 are not laminated.
Is exposed at.

FIG. 2 is a schematic cross-sectional configuration diagram showing the configuration of a resin coating device for carrying out the method for producing a resin laminate according to the present invention.

A method for manufacturing the resin laminate 1 will be described with reference to FIG.

The resin coating device 100 includes a pair of belt wheels 101 and 102 that are rotated at a constant speed in the direction of arrow A by a drive device (not shown).
An endless belt 103 rolling on the belt wheels 101 and 102 and traveling in the direction of the arrow B by the rotation of the belt wheels 101 and 102, a rotary screen 104 arranged on the upstream side portion of the upper running zone 103a of the endless belt 103, and an endless belt. Belt 103 upper lane
Rotary screen 10 located downstream of 103a
5, heating parts 110 and 111 respectively arranged on the downstream side of the rotary screens 104 and 105, and a raw material of a polyester non-woven fabric arranged between the heating part 110 and the rotary screen 105 and above the upper traveling zone 103a. Roll 106
(Hereinafter, simply referred to as roll 106). The non-woven fabric 107, that is, the flexible sheet, is moved downward from the roll 106 at substantially the same speed as the traveling speed of the endless belt 103 by a winding device (not shown) arranged on the downstream side of the resin coating device 100. It is pulled out and deflected in the direction of arrow B by the deflecting roller 108. The roll 108 brings the lower surface of the nonwoven fabric 107 close to the upper surface of the upper traveling zone 103a.

The endless belt 103 is made of a flexible body having a smooth outer peripheral surface and a width of about 1.5 m, and the outer peripheral surface is coated with a fluororesin, for example, tetrafluororesin such as Teflon.

The rotary screens 104 and 105 are provided with metal screens 104a and 105a (hereinafter, simply referred to as screens 104a and 105a, respectively) having a desired print pattern formed on their outer peripheral portions, and the screens 104a and 105a are the rotary screens 104. , 105, the resin fluid, such as a vinyl chloride resin solution, can be discharged in a predetermined pattern. The rotary screens 104 and 105 are screens 104a.
Is on the upper surface of the upper traveling zone 103a, and the screen 105a is a non-woven fabric.
It is circumscribed on the upper surface of 107. The peripheral speeds of the rotary screens 104 and 105 are synchronized with the linear speed of the endless belt 103. Further, the resin fluid is screens 104a and 105a.
The rotary screens 104 and 105 are also rotated in synchronization with each other so that they can be pressed to the upper surface of the upper running zone 103a and the upper surface of the nonwoven fabric 107 in substantially the same pattern and substantially the same position.

The heating unit 110 is located above the rotary screen 104 in the upper traveling zone.
The resin fluid extruded on 103a is dried to a semi-molten state without being completely cured, and the heating unit 111 is configured to dry and cure the resin fluid extruded from the rotary screen 105 onto the nonwoven fabric 107. Each is configured.

The long resin laminate 1 is manufactured as follows using this resin coating device 100.

Press the resin fluid from the rotary screen 104,
A resin fluid layer having a predetermined pattern is formed on the upper surface of the upper traveling zone 103a of the endless belt 103. The resin fluid layer passes through the heating unit 110 by traveling in the upper traveling zone 103a and is semi-molten. Then, the nonwoven fabric 107 is rolled from the roll 106 to an endless belt.
The resin layer having a predetermined pattern, which is continuously supplied onto 103 and is in a semi-molten state without being sufficiently solidified yet, is a non-woven fabric 107.
Attached to the underside of. Further, the upper traveling zone 103a, the resin fluid layer and the nonwoven fabric 107 are integrally moved in the direction of the arrow B, the resin fluid is squeezed out from the rotary screen 105 onto the upper surface of the nonwoven fabric 107, and the pattern of the rotary screen 104 is formed. A resin fluid layer having substantially the same pattern is formed on the upper surface of the nonwoven fabric 107. Since the rotation of the rotary screen 105 is synchronized with the rotation of the rotary screen 104, the resin fluid layer formed on the upper surface of the nonwoven fabric 107 is arranged at substantially the same position as the resin layer attached to the lower surface of the nonwoven fabric 1. To be done. This resin fluid layer is
It is dried and solidified by heating 111, and on the upper surface of the nonwoven fabric 107,
It is applied as a resin layer having a predetermined pattern.

The non-woven fabric 107 has an endless belt 103 near the upper part of the belt wheel 102.
The resin layer that has been separated from the upper surface of the upper traveling zone 103a is separated from the upper surface of the running belt 103a. The endless belt 103 is
Since the outer peripheral surface is coated with a fluororesin, the adhesive force with the resin layer is relatively weak. Therefore, the resin layer formed between the endless belt 103 and the non-woven fabric 107 is a non-woven fabric.
While being attached to the lower surface of 107, it accompanies the nonwoven fabric 107. Preferably, in order to further facilitate the separation of the resin layer and the endless belt 103, the resin fluid layer on the endless belt 103 that is pressed down by the rotary screen 104 is formed relatively thin.

Thus, patterns or patterns having substantially the same pattern made of the resin layer are formed on both the upper surface and the lower surface of the nonwoven fabric 107.

The present invention is not limited to the above embodiments, and various modifications or applications are possible within the scope of the invention described in the claims, and those modifications or applications are also included in the scope of the present invention. It goes without saying that it is one.

For example, as the base material of the resin laminate, a nylon non-woven fabric,
It is possible to use various long sheet materials such as a nonwoven fabric made of polypropylene, a flexible woven fabric or knitted fabric such as a spinner, and further flexible papers or glass cloth.

Further, in the method for producing a long resin laminate according to the present invention, in FIG. 4, a roll of release paper is arranged on the upstream side of the belt wheel 101, and the release paper is placed on the belt wheels 101 and 102. It can also be carried out by a resin coating device configured to run and form the upper traveling band 103a, and to draw the nonwoven fabric 107 and the release paper integrally from the belt wheel 102 near the upper portion of the belt wheel 102. Is. In this case, the resin fluid is squeezed out from the rotary screen 104 to the upper surface of the release paper forming the upper traveling zone 103a, and the release paper is adhered to the resin layer formed on the lower surface of the nonwoven fabric 107 while leaving the resin. Laminate 1
Together with it, it is pulled out from the resin coating device. The release paper is removed from the resin laminate 1 on the downstream side of the resin coating device or before use.

Further, a metal screen or the like in which a predetermined pattern is formed on the outer circumference of the rotary screen is provided, but in place of the metal screen, all types used in ordinary printing technology can be used.

Furthermore, it is also possible to supply resins of different types or hues to the two rotary screens, respectively, and perform printing of resin layers of different types or hues on the upper surface and the lower surface of the nonwoven fabric.

EFFECTS OF THE INVENTION According to the present invention, it is possible to provide a method and an apparatus for manufacturing a long resin laminate capable of continuously printing a resin layer on both surfaces of a long sheet.

[Brief description of drawings]

FIG. 1 is a schematic partial cross-sectional view illustrating a long resin laminate manufactured by the manufacturing method of the present invention. FIG. 2 is a schematic cross-sectional configuration diagram showing the configuration of a resin coating device for carrying out the method for producing a resin laminate according to the present invention. (Explanation of symbols) 1 ... Resin laminate, 3 ... Base material, 5 ... Exposed portion, 10 ...
… Printed matter, 11, 12 …… Resin layer, 101, 102 …… Belt wheel,
103 …… Belt belt, 103a …… Upper traveling belt, 104,105 ……
Rotary screen, 104a, 105a ... Metal screen, 106 ... Roll, 107 ... Nonwoven fabric, 108 ... Turning roller, 110, 111 ... Heating section.

Claims (2)

[Claims] 1. A method for producing a long resin laminate in which a resin layer is printed on the surface of a long flexible sheet, wherein a first upper surface circumscribing the upper surface of a running belt having a smooth upper surface. A rotary screen forms a resin fluid layer having a predetermined pattern, and the resin fluid layer is heated to form a semi-molten first
A step of forming a resin layer; a step of stacking a long flexible sheet on the first resin layer to attach the lower surface of the sheet to the first resin layer; A step of forming a resin fluid layer having a predetermined pattern on the upper surface of the sheet, and heating and drying the resin fluid layer to form a substantially solidified second resin layer. A method for producing a resin laminate. 2. A running belt having a smooth upper surface in a manufacturing apparatus for a long resin laminate for printing a resin layer on the surface of a long flexible sheet, and running and contacting the upper surface of the running belt. A first rotary screen for forming a first resin fluid layer having a predetermined pattern on the upper surface of the strip, and a first heating device arranged downstream of the first rotary screen for heating the first resin fluid layer. A sheet diverting means for stacking a long flexible sheet on the first resin fluid layer that has passed through the first heating device and attaching the first resin layer to the lower surface of the sheet; A long resin laminate provided with a second rotary screen for forming a second resin fluid layer having a predetermined pattern on the upper surface and a second heating device for heating the second resin fluid layer. Manufacturing equipment.